Novel magneto-resistance oscillations in short period lateral superlattices

被引：8
|
作者：
Albrecht, C [1 ]
Smet, JH
Weiss, D
von Klitzing, K
Umansky, V
Schweizer, H
机构：
[1] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany
[2] Univ Regensburg, Inst Expt & Angew Phys, D-93040 Regensburg, Germany
[3] Weizmann Inst Sci, Braun Ctr Submicron Res, IL-76100 Rehovot, Israel
[4] Univ Stuttgart, Inst Phys 4, D-70550 Stuttgart, Germany
来源：
PHYSICA B-CONDENSED MATTER | 1998年 / 249卷
关键词：
lateral superlattices; magnetotransport; commensurability oscillations; Hofstadter butterfly;
D O I：
10.1016/S0921-4526(98)00344-5
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We have investigated magnetotransport through two-dimensional lateral superlattices with periods a of 100 and 120 nm prepared on a shallow, high mobility heterojunction. Measurements of the longitudinal and Hall resistance were carried out at a temperature of 50 mK with the bias voltage of the top gate as parameter. The longitudinal resistance displays an unprecedented richness in oscillatory features of both semiclassical and quantum mechanical origin. The results are discussed on the basis of the zero field miniband energy spectrum and the subband splitting of single Landau-levels. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：914 / 917
页数：4
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